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Date:: Tue Mar 21 18:03:33 2006 UTC
Message:: Write $-free paths in Dump files (Peter Canning).
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1 #include <u.h>
2 #include <libc.h>
3 #include <draw.h>
4 #include <thread.h>
5 #include <cursor.h>
6 #include <mouse.h>
7 #include <keyboard.h>
8 #include <frame.h>
9 #include <fcall.h>
10 #include <bio.h>
11 #include <plumb.h>
12 #include "dat.h"
13 #include "fns.h"
14 
15 static Rune Lcolhdr[] = {
16 	'N', 'e', 'w', 'c', 'o', 'l', ' ',
17 	'K', 'i', 'l', 'l', ' ',
18 	'P', 'u', 't', 'a', 'l', 'l', ' ',
19 	'D', 'u', 'm', 'p', ' ',
20 	'E', 'x', 'i', 't', ' ',
21 	0
22 };
23 
24 void
25 rowinit(Row *row, Rectangle r)
26 {
27 	Rectangle r1;
28 	Text *t;
29 
30 	draw(screen, r, display->white, nil, ZP);
31 	row->r = r;
32 	row->col = nil;
33 	row->ncol = 0;
34 	r1 = r;
35 	r1.max.y = r1.min.y + font->height;
36 	t = &row->tag;
37 	textinit(t, fileaddtext(nil, t), r1, rfget(FALSE, FALSE, FALSE, nil), tagcols);
38 	t->what = Rowtag;
39 	t->row = row;
40 	t->w = nil;
41 	t->col = nil;
42 	r1.min.y = r1.max.y;
43 	r1.max.y += Border;
44 	draw(screen, r1, display->black, nil, ZP);
45 	textinsert(t, 0, Lcolhdr, 29, TRUE);
46 	textsetselect(t, t->file->b.nc, t->file->b.nc);
47 }
48 
49 Column*
50 rowadd(Row *row, Column *c, int x)
51 {
52 	Rectangle r, r1;
53 	Column *d;
54 	int i;
55 
56 	d = nil;
57 	r = row->r;
58 	r.min.y = row->tag.fr.r.max.y+Border;
59 	if(x<r.min.x && row->ncol>0){	/*steal 40% of last column by default */
60 		d = row->col[row->ncol-1];
61 		x = d->r.min.x + 3*Dx(d->r)/5;
62 	}
63 	/* look for column we'll land on */
64 	for(i=0; i<row->ncol; i++){
65 		d = row->col[i];
66 		if(x < d->r.max.x)
67 			break;
68 	}
69 	if(row->ncol > 0){
70 		if(i < row->ncol)
71 			i++;	/* new column will go after d */
72 		r = d->r;
73 		if(Dx(r) < 100)
74 			return nil;
75 		draw(screen, r, display->white, nil, ZP);
76 		r1 = r;
77 		r1.max.x = min(x-Border, r.max.x-50);
78 		if(Dx(r1) < 50)
79 			r1.max.x = r1.min.x+50;
80 		colresize(d, r1);
81 		r1.min.x = r1.max.x;
82 		r1.max.x = r1.min.x+Border;
83 		draw(screen, r1, display->black, nil, ZP);
84 		r.min.x = r1.max.x;
85 	}
86 	if(c == nil){
87 		c = emalloc(sizeof(Column));
88 		colinit(c, r);
89 		incref(&reffont.ref);
90 	}else
91 		colresize(c, r);
92 	c->row = row;
93 	c->tag.row = row;
94 	row->col = realloc(row->col, (row->ncol+1)*sizeof(Column*));
95 	memmove(row->col+i+1, row->col+i, (row->ncol-i)*sizeof(Column*));
96 	row->col[i] = c;
97 	row->ncol++;
98 	clearmouse();
99 	return c;
100 }
101 
102 void
103 rowresize(Row *row, Rectangle r)
104 {
105 	int i, dx, odx;
106 	Rectangle r1, r2;
107 	Column *c;
108 
109 	dx = Dx(r);
110 	odx = Dx(row->r);
111 	row->r = r;
112 	r1 = r;
113 	r1.max.y = r1.min.y + font->height;
114 	textresize(&row->tag, r1, TRUE);
115 	r1.min.y = r1.max.y;
116 	r1.max.y += Border;
117 	draw(screen, r1, display->black, nil, ZP);
118 	r.min.y = r1.max.y;
119 	r1 = r;
120 	r1.max.x = r1.min.x;
121 	for(i=0; i<row->ncol; i++){
122 		c = row->col[i];
123 		r1.min.x = r1.max.x;
124 		if(i == row->ncol-1)
125 			r1.max.x = r.max.x;
126 		else
127 			r1.max.x = r1.min.x+Dx(c->r)*dx/odx;
128 		if(i > 0){
129 			r2 = r1;
130 			r2.max.x = r2.min.x+Border;
131 			draw(screen, r2, display->black, nil, ZP);
132 			r1.min.x = r2.max.x;
133 		}
134 		colresize(c, r1);
135 	}
136 }
137 
138 void
139 rowdragcol(Row *row, Column *c, int _0)
140 {
141 	Rectangle r;
142 	int i, b, x;
143 	Point p, op;
144 	Column *d;
145 
146 	USED(_0);
147 
148 	clearmouse();
149 	setcursor(mousectl, &boxcursor);
150 	b = mouse->buttons;
151 	op = mouse->xy;
152 	while(mouse->buttons == b)
153 		readmouse(mousectl);
154 	setcursor(mousectl, nil);
155 	if(mouse->buttons){
156 		while(mouse->buttons)
157 			readmouse(mousectl);
158 		return;
159 	}
160 
161 	for(i=0; i<row->ncol; i++)
162 		if(row->col[i] == c)
163 			goto Found;
164 	error("can't find column");
165 
166   Found:
167 	if(i == 0)
168 		return;
169 	p = mouse->xy;
170 	if((abs(p.x-op.x)<5 && abs(p.y-op.y)<5))
171 		return;
172 	if((i>0 && p.x<row->col[i-1]->r.min.x) || (i<row->ncol-1 && p.x>c->r.max.x)){
173 		/* shuffle */
174 		x = c->r.min.x;
175 		rowclose(row, c, FALSE);
176 		if(rowadd(row, c, p.x) == nil)	/* whoops! */
177 		if(rowadd(row, c, x) == nil)		/* WHOOPS! */
178 		if(rowadd(row, c, -1)==nil){		/* shit! */
179 			rowclose(row, c, TRUE);
180 			return;
181 		}
182 		colmousebut(c);
183 		return;
184 	}
185 	d = row->col[i-1];
186 	if(p.x < d->r.min.x+80+Scrollwid)
187 		p.x = d->r.min.x+80+Scrollwid;
188 	if(p.x > c->r.max.x-80-Scrollwid)
189 		p.x = c->r.max.x-80-Scrollwid;
190 	r = d->r;
191 	r.max.x = c->r.max.x;
192 	draw(screen, r, display->white, nil, ZP);
193 	r.max.x = p.x;
194 	colresize(d, r);
195 	r = c->r;
196 	r.min.x = p.x;
197 	r.max.x = r.min.x;
198 	r.max.x += Border;
199 	draw(screen, r, display->black, nil, ZP);
200 	r.min.x = r.max.x;
201 	r.max.x = c->r.max.x;
202 	colresize(c, r);
203 	colmousebut(c);
204 }
205 
206 void
207 rowclose(Row *row, Column *c, int dofree)
208 {
209 	Rectangle r;
210 	int i;
211 
212 	for(i=0; i<row->ncol; i++)
213 		if(row->col[i] == c)
214 			goto Found;
215 	error("can't find column");
216   Found:
217 	r = c->r;
218 	if(dofree)
219 		colcloseall(c);
220 	memmove(row->col+i, row->col+i+1, (row->ncol-i)*sizeof(Column*));
221 	row->ncol--;
222 	row->col = realloc(row->col, row->ncol*sizeof(Column*));
223 	if(row->ncol == 0){
224 		draw(screen, r, display->white, nil, ZP);
225 		return;
226 	}
227 	if(i == row->ncol){		/* extend last column right */
228 		c = row->col[i-1];
229 		r.min.x = c->r.min.x;
230 		r.max.x = row->r.max.x;
231 	}else{			/* extend next window left */
232 		c = row->col[i];
233 		r.max.x = c->r.max.x;
234 	}
235 	draw(screen, r, display->white, nil, ZP);
236 	colresize(c, r);
237 }
238 
239 Column*
240 rowwhichcol(Row *row, Point p)
241 {
242 	int i;
243 	Column *c;
244 
245 	for(i=0; i<row->ncol; i++){
246 		c = row->col[i];
247 		if(ptinrect(p, c->r))
248 			return c;
249 	}
250 	return nil;
251 }
252 
253 Text*
254 rowwhich(Row *row, Point p)
255 {
256 	Column *c;
257 
258 	if(ptinrect(p, row->tag.all))
259 		return &row->tag;
260 	c = rowwhichcol(row, p);
261 	if(c)
262 		return colwhich(c, p);
263 	return nil;
264 }
265 
266 Text*
267 rowtype(Row *row, Rune r, Point p)
268 {
269 	Window *w;
270 	Text *t;
271 
272 	clearmouse();
273 	qlock(&row->lk);
274 	if(bartflag)
275 		t = barttext;
276 	else
277 		t = rowwhich(row, p);
278 	if(t!=nil && !(t->what==Tag && ptinrect(p, t->scrollr))){
279 		w = t->w;
280 		if(w == nil)
281 			texttype(t, r);
282 		else{
283 			winlock(w, 'K');
284 			wintype(w, t, r);
285 /*
286  * TAG If we typed in the tag, might need to make it
287  * bigger to show text.  \n causes tag to expand.
288  */
289 			if(t->what == Tag){
290 				t->w->tagsafe = FALSE;
291 				if(r == '\n')
292 					t->w->tagexpand = TRUE;
293 				winresize(w, w->r, TRUE, TRUE);
294 			}
295 /* END TAG */
296 			winunlock(w);
297 		}
298 	}
299 	qunlock(&row->lk);
300 	return t;
301 }
302 
303 int
304 rowclean(Row *row)
305 {
306 	int clean;
307 	int i;
308 
309 	clean = TRUE;
310 	for(i=0; i<row->ncol; i++)
311 		clean &= colclean(row->col[i]);
312 	return clean;
313 }
314 
315 void
316 rowdump(Row *row, char *file)
317 {
318 	int i, j, fd, m, n, dumped;
319 	uint q0, q1;
320 	Biobuf *b;
321 	char *buf, *a, *fontname;
322 	Rune *r, *rp;
323 	Column *c;
324 	Window *w, *w1;
325 	Text *t;
326 
327 	if(row->ncol == 0)
328 		return;
329 	buf = fbufalloc();
330 	if(file == nil){
331 		if(home == nil){
332 			warning(nil, "can't find file for dump: $home not defined\n");
333 			goto Rescue;
334 		}
335 		sprint(buf, "%s/acme.dump", home);
336 		file = buf;
337 	}
338 	fd = create(file, OWRITE, 0600);
339 	if(fd < 0){
340 		warning(nil, "can't open %s: %r\n", file);
341 		goto Rescue;
342 	}
343 	b = emalloc(sizeof(Biobuf));
344 	Binit(b, fd, OWRITE);
345 	r = fbufalloc();
346 	Bprint(b, "%s\n", wdir);
347 	Bprint(b, "%s\n", fontnames[0]);
348 	Bprint(b, "%s\n", fontnames[1]);
349 	for(i=0; i<row->ncol; i++){
350 		c = row->col[i];
351 		Bprint(b, "%11.7f", 100.0*(c->r.min.x-row->r.min.x)/Dx(row->r));
352 		if(i == row->ncol-1)
353 			Bputc(b, '\n');
354 		else
355 			Bputc(b, ' ');
356 	}
357 	for(i=0; i<row->ncol; i++){
358 		c = row->col[i];
359 		for(j=0; j<c->nw; j++)
360 			c->w[j]->body.file->dumpid = 0;
361 	}
362 	for(i=0; i<row->ncol; i++){
363 		c = row->col[i];
364 		for(j=0; j<c->nw; j++){
365 			w = c->w[j];
366 			wincommit(w, &w->tag);
367 			t = &w->body;
368 			/* windows owned by others get special treatment */
369 			if(w->nopen[QWevent] > 0)
370 				if(w->dumpstr == nil)
371 					continue;
372 			/* zeroxes of external windows are tossed */
373 			if(t->file->ntext > 1)
374 				for(n=0; n<t->file->ntext; n++){
375 					w1 = t->file->text[n]->w;
376 					if(w == w1)
377 						continue;
378 					if(w1->nopen[QWevent])
379 						goto Continue2;
380 				}
381 			fontname = "";
382 			if(t->reffont->f != font)
383 				fontname = t->reffont->f->name;
384 			if(t->file->nname)
385 				a = runetobyte(t->file->name, t->file->nname);
386 			else
387 				a = emalloc(1);
388 			if(t->file->dumpid){
389 				dumped = FALSE;
390 				Bprint(b, "x%11d %11d %11d %11d %11.7f %s\n", i, t->file->dumpid,
391 					w->body.q0, w->body.q1,
392 					100.0*(w->r.min.y-c->r.min.y)/Dy(c->r),
393 					fontname);
394 			}else if(w->dumpstr){
395 				dumped = FALSE;
396 				Bprint(b, "e%11d %11d %11d %11d %11.7f %s\n", i, t->file->dumpid,
397 					0, 0,
398 					100.0*(w->r.min.y-c->r.min.y)/Dy(c->r),
399 					fontname);
400 			}else if((w->dirty==FALSE && access(a, 0)==0) || w->isdir){
401 				dumped = FALSE;
402 				t->file->dumpid = w->id;
403 				Bprint(b, "f%11d %11d %11d %11d %11.7f %s\n", i, w->id,
404 					w->body.q0, w->body.q1,
405 					100.0*(w->r.min.y-c->r.min.y)/Dy(c->r),
406 					fontname);
407 			}else{
408 				dumped = TRUE;
409 				t->file->dumpid = w->id;
410 				Bprint(b, "F%11d %11d %11d %11d %11.7f %11d %s\n", i, j,
411 					w->body.q0, w->body.q1,
412 					100.0*(w->r.min.y-c->r.min.y)/Dy(c->r),
413 					w->body.file->b.nc, fontname);
414 			}
415 			free(a);
416 			winctlprint(w, buf, 0);
417 			Bwrite(b, buf, strlen(buf));
418 			m = min(RBUFSIZE, w->tag.file->b.nc);
419 			bufread(&w->tag.file->b, 0, r, m);
420 			if(dodollarsigns && r[0] == '$'){
421 				rp = runestrdup(r);
422 				expandenv(&rp, (uint*)&m);
423 			}else
424 				rp = r;
425 			n = 0;
426 			while(n<m && rp[n]!='\n')
427 				n++;
428 			Bprint(b, "%.*S\n", n, rp);
429 			if(rp != r)
430 				free(rp);
431 			if(dumped){
432 				q0 = 0;
433 				q1 = t->file->b.nc;
434 				while(q0 < q1){
435 					n = q1 - q0;
436 					if(n > BUFSIZE/UTFmax)
437 						n = BUFSIZE/UTFmax;
438 					bufread(&t->file->b, q0, r, n);
439 					Bprint(b, "%.*S", n, r);
440 					q0 += n;
441 				}
442 			}
443 			if(w->dumpstr){
444 				if(w->dumpdir)
445 					Bprint(b, "%s\n%s\n", w->dumpdir, w->dumpstr);
446 				else
447 					Bprint(b, "\n%s\n", w->dumpstr);
448 			}
449     Continue2:;
450 		}
451 	}
452 	Bterm(b);
453 	close(fd);
454 	free(b);
455 	fbuffree(r);
456 
457    Rescue:
458 	fbuffree(buf);
459 }
460 
461 static
462 char*
463 rdline(Biobuf *b, int *linep)
464 {
465 	char *l;
466 
467 	l = Brdline(b, '\n');
468 	if(l)
469 		(*linep)++;
470 	return l;
471 }
472 
473 /*
474  * Get font names from load file so we don't load fonts we won't use
475  */
476 void
477 rowloadfonts(char *file)
478 {
479 	int i;
480 	Biobuf *b;
481 	char *l;
482 
483 	b = Bopen(file, OREAD);
484 	if(b == nil)
485 		return;
486 	/* current directory */
487 	l = Brdline(b, '\n');
488 	if(l == nil)
489 		goto Return;
490 	/* global fonts */
491 	for(i=0; i<2; i++){
492 		l = Brdline(b, '\n');
493 		if(l == nil)
494 			goto Return;
495 		l[Blinelen(b)-1] = 0;
496 		if(*l && strcmp(l, fontnames[i])!=0){
497 			free(fontnames[i]);
498 			fontnames[i] = estrdup(l);
499 		}
500 	}
501     Return:
502 	Bterm(b);
503 }
504 
505 int
506 rowload(Row *row, char *file, int initing)
507 {
508 	int i, j, line, y, nr, nfontr, n, ns, ndumped, dumpid, x, fd;
509 	double percent;
510 	Biobuf *b, *bout;
511 	char *buf, *l, *t, *fontname;
512 	Rune *r, rune, *fontr;
513 	Column *c, *c1, *c2;
514 	uint q0, q1;
515 	Rectangle r1, r2;
516 	Window *w;
517 
518 	buf = fbufalloc();
519 	if(file == nil){
520 		if(home == nil){
521 			warning(nil, "can't find file for load: $home not defined\n");
522 			goto Rescue1;
523 		}
524 		sprint(buf, "%s/acme.dump", home);
525 		file = buf;
526 	}
527 	b = Bopen(file, OREAD);
528 	if(b == nil){
529 		warning(nil, "can't open load file %s: %r\n", file);
530 		goto Rescue1;
531 	}
532 	/* current directory */
533 	line = 0;
534 	l = rdline(b, &line);
535 	if(l == nil)
536 		goto Rescue2;
537 	l[Blinelen(b)-1] = 0;
538 	if(chdir(l) < 0){
539 		warning(nil, "can't chdir %s\n", l);
540 		goto Rescue2;
541 	}
542 	/* global fonts */
543 	for(i=0; i<2; i++){
544 		l = rdline(b, &line);
545 		if(l == nil)
546 			goto Rescue2;
547 		l[Blinelen(b)-1] = 0;
548 		if(*l && strcmp(l, fontnames[i])!=0)
549 			rfget(i, TRUE, i==0 && initing, l);
550 	}
551 	if(initing && row->ncol==0)
552 		rowinit(row, screen->clipr);
553 	l = rdline(b, &line);
554 	if(l == nil)
555 		goto Rescue2;
556 	j = Blinelen(b)/12;
557 	if(j<=0 || j>10)
558 		goto Rescue2;
559 	for(i=0; i<j; i++){
560 		percent = atof(l+i*12);
561 		if(percent<0 || percent>=100)
562 			goto Rescue2;
563 		x = row->r.min.x+percent*Dx(row->r)/100+0.5;
564 		if(i < row->ncol){
565 			if(i == 0)
566 				continue;
567 			c1 = row->col[i-1];
568 			c2 = row->col[i];
569 			r1 = c1->r;
570 			r2 = c2->r;
571 			if(x<Border)
572 				x = Border;
573 			r1.max.x = x-Border;
574 			r2.min.x = x;
575 			if(Dx(r1) < 50 || Dx(r2) < 50)
576 				continue;
577 			draw(screen, Rpt(r1.min, r2.max), display->white, nil, ZP);
578 			colresize(c1, r1);
579 			colresize(c2, r2);
580 			r2.min.x = x-Border;
581 			r2.max.x = x;
582 			draw(screen, r2, display->black, nil, ZP);
583 		}
584 		if(i >= row->ncol)
585 			rowadd(row, nil, x);
586 	}
587 	for(;;){
588 		l = rdline(b, &line);
589 		if(l == nil)
590 			break;
591 		dumpid = 0;
592 		switch(l[0]){
593 		case 'e':
594 			if(Blinelen(b) < 1+5*12+1)
595 				goto Rescue2;
596 			l = rdline(b, &line);	/* ctl line; ignored */
597 			if(l == nil)
598 				goto Rescue2;
599 			l = rdline(b, &line);	/* directory */
600 			if(l == nil)
601 				goto Rescue2;
602 			l[Blinelen(b)-1] = 0;
603 			if(*l == '\0'){
604 				if(home == nil)
605 					r = bytetorune("./", &nr);
606 				else{
607 					t = emalloc(strlen(home)+1+1);
608 					sprint(t, "%s/", home);
609 					r = bytetorune(t, &nr);
610 					free(t);
611 				}
612 			}else
613 				r = bytetorune(l, &nr);
614 			l = rdline(b, &line);	/* command */
615 			if(l == nil)
616 				goto Rescue2;
617 			t = emalloc(Blinelen(b)+1);
618 			memmove(t, l, Blinelen(b));
619 			run(nil, t, r, nr, TRUE, nil, nil, FALSE);
620 			/* r is freed in run() */
621 			continue;
622 		case 'f':
623 			if(Blinelen(b) < 1+5*12+1)
624 				goto Rescue2;
625 			fontname = l+1+5*12;
626 			ndumped = -1;
627 			break;
628 		case 'F':
629 			if(Blinelen(b) < 1+6*12+1)
630 				goto Rescue2;
631 			fontname = l+1+6*12;
632 			ndumped = atoi(l+1+5*12+1);
633 			break;
634 		case 'x':
635 			if(Blinelen(b) < 1+5*12+1)
636 				goto Rescue2;
637 			fontname = l+1+5*12;
638 			ndumped = -1;
639 			dumpid = atoi(l+1+1*12);
640 			break;
641 		default:
642 			goto Rescue2;
643 		}
644 		l[Blinelen(b)-1] = 0;
645 		fontr = nil;
646 		nfontr = 0;
647 		if(*fontname)
648 			fontr = bytetorune(fontname, &nfontr);
649 		i = atoi(l+1+0*12);
650 		j = atoi(l+1+1*12);
651 		q0 = atoi(l+1+2*12);
652 		q1 = atoi(l+1+3*12);
653 		percent = atof(l+1+4*12);
654 		if(i<0 || i>10)
655 			goto Rescue2;
656 		if(i > row->ncol)
657 			i = row->ncol;
658 		c = row->col[i];
659 		y = c->r.min.y+(percent*Dy(c->r))/100+0.5;
660 		if(y<c->r.min.y || y>=c->r.max.y)
661 			y = -1;
662 		if(dumpid == 0)
663 			w = coladd(c, nil, nil, y);
664 		else
665 			w = coladd(c, nil, lookid(dumpid, TRUE), y);
666 		if(w == nil)
667 			continue;
668 		w->dumpid = j;
669 		l = rdline(b, &line);
670 		if(l == nil)
671 			goto Rescue2;
672 		l[Blinelen(b)-1] = 0;
673 		r = bytetorune(l+5*12, &nr);
674 		ns = -1;
675 		for(n=0; n<nr; n++){
676 			if(r[n] == '/')
677 				ns = n;
678 			if(r[n] == ' ')
679 				break;
680 		}
681 		if(dumpid == 0)
682 			winsetname(w, r, n);
683 		for(; n<nr; n++)
684 			if(r[n] == '|')
685 				break;
686 		wincleartag(w);
687 		textinsert(&w->tag, w->tag.file->b.nc, r+n+1, nr-(n+1), TRUE);
688 		if(ndumped >= 0){
689 			/* simplest thing is to put it in a file and load that */
690 			sprint(buf, "/tmp/d%d.%.4sacme", getpid(), getuser());
691 			fd = create(buf, OWRITE, 0600);
692 			if(fd < 0){
693 				free(r);
694 				warning(nil, "can't create temp file: %r\n");
695 				goto Rescue2;
696 			}
697 			bout = emalloc(sizeof(Biobuf));
698 			Binit(bout, fd, OWRITE);
699 			for(n=0; n<ndumped; n++){
700 				rune = Bgetrune(b);
701 				if(rune == '\n')
702 					line++;
703 				if(rune == (Rune)Beof){
704 					free(r);
705 					Bterm(bout);
706 					free(bout);
707 					close(fd);
708 					goto Rescue2;
709 				}
710 				Bputrune(bout, rune);
711 			}
712 			Bterm(bout);
713 			free(bout);
714 			textload(&w->body, 0, buf, 1);
715 			remove(buf);
716 			close(fd);
717 			w->body.file->mod = TRUE;
718 			for(n=0; n<w->body.file->ntext; n++)
719 				w->body.file->text[n]->w->dirty = TRUE;
720 			winsettag(w);
721 		}else if(dumpid==0 && r[ns+1]!='+' && r[ns+1]!='-')
722 			get(&w->body, nil, nil, FALSE, XXX, nil, 0);
723 		if(fontr){
724 			fontx(&w->body, nil, nil, 0, 0, fontr, nfontr);
725 			free(fontr);
726 		}
727 		free(r);
728 		if(q0>w->body.file->b.nc || q1>w->body.file->b.nc || q0>q1)
729 			q0 = q1 = 0;
730 		textshow(&w->body, q0, q1, 1);
731 		w->maxlines = min(w->body.fr.nlines, max(w->maxlines, w->body.fr.maxlines));
732 	}
733 	Bterm(b);
734 
735 	fbuffree(buf);
736 	return TRUE;
737 
738 Rescue2:
739 	warning(nil, "bad load file %s:%d\n", file, line);
740 	Bterm(b);
741 Rescue1:
742 	fbuffree(buf);
743 	return FALSE;
744 }
745 
746 void
747 allwindows(void (*f)(Window*, void*), void *arg)
748 {
749 	int i, j;
750 	Column *c;
751 
752 	for(i=0; i<row.ncol; i++){
753 		c = row.col[i];
754 		for(j=0; j<c->nw; j++)
755 			(*f)(c->w[j], arg);
756 	}
757 }